Lock



FIG. 1 is a perspective view of the design of the present invention;

FIG. 2 is a top view of the lock shown in FIG. 1;

FIG. 3 is a front view of the lock shown in FIG. 1;

FIG. 4 is a back view of the lock shown in FIG. 1;

FIG. 5 is a bottom view of the lock shown in FIG. 1;

FIG. 6 is a side view of the lock shown in FIG. 1; and,

FIG. 7 is a side view of the lock shown in FIG. 1.

The broken lines, which define the bounds of the claimed design, form nopart thereof. The broken lines environmental are for illustrativepurposes only and form no part of the claimed design.

The ornamental design for a lock, as shown and described.